图论--网络流--最大流--POJ 1698 Alice's Chance

【图论--网络流--最大流--POJ 1698 Alice's Chance】的更多相关文章

图论--网络流--最大流--POJ 1698 Alice's Chance

Description Alice, a charming girl, have been dreaming of being a movie star for long. Her chances will come now, for several filmmaking companies invite her to play the chief role in their new films. Unfortunately, all these companies will start mak…

poj 1698 Alice‘s Chance

poj 1698 Alice's Chance 题目地址: http://poj.org/problem?id=1698 题意: 演员Alice ,面对n场电影,每场电影拍摄持续w周,每周特定几天拍摄,每场电影需要Alice到场的天数为d. 请问Alice是否可以参与所有的电影拍摄. 最近在学习最大流的算法. (1), 最大流真的是一种神奇的算法,最大的亮点是最大流的可回溯性,其可回溯性体现在反向边的提出. (2), 最大流的应用也是非常灵活的,其中一个体现在如何构建流量网络,本题采用逆向思维…

图论--网络流--最大流--POJ 3281 Dining (超级源汇+限流建图+拆点建图）

Description Cows are such finicky eaters. Each cow has a preference for certain foods and drinks, and she will consume no others. Farmer John has cooked fabulous meals for his cows, but he forgot to check his menu against their preferences. Although…

poj 1698 Alice's Chance 最大流

题目:给出n部电影的可以在周几拍摄.总天数.期限,问能不能把n部电影接下来. 分析: 对于每部电影连上源点,流量为总天数. 对于每一天建立一个点,连上汇点,流量为为1. 对于每部电影,如果可以在该天拍摄,则连上一条流量为1的边. 跑一次最大流... #include <set> #include <map> #include <list> #include <cmath> #include <queue> #include <stack&g…

图论--网络流--费用流POJ 2195 Going Home

Description On a grid map there are n little men and n houses. In each unit time, every little man can move one unit step, either horizontally, or vertically, to an adjacent point. For each little man, you need to pay a $1 travel fee for every step h…

图论--网络流--费用流--POJ 2156 Minimum Cost

Description Dearboy, a goods victualer, now comes to a big problem, and he needs your help. In his sale area there are N shopkeepers (marked from 1 to N) which stocks goods from him.Dearboy has M supply places (marked from 1 to M), each provides K di…

图论--网络流--最大流 POJ 2289 Jamie's Contact Groups （二分+限流建图）

Description Jamie is a very popular girl and has quite a lot of friends, so she always keeps a very long contact list in her cell phone. The contact list has become so long that it often takes a long time for her to browse through the whole list to f…